// ##########################################################################
// #                                                                        #
// #                              CLOUDCOMPARE                              #
// #                                                                        #
// #  This program is free software; you can redistribute it and/or modify  #
// #  it under the terms of the GNU General Public License as published by  #
// #  the Free Software Foundation; version 2 or later of the License.      #
// #                                                                        #
// #  This program is distributed in the hope that it will be useful,       #
// #  but WITHOUT ANY WARRANTY; without even the implied warranty of        #
// #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the          #
// #  GNU General Public License for more details.                          #
// #                                                                        #
// #          COPYRIGHT: EDF R&D / TELECOM ParisTech (ENST-TSI)             #
// #                                                                        #
// ##########################################################################

#ifndef CC_POINT_PICKING_LIST_DIALOG_HEADER
#define CC_POINT_PICKING_LIST_DIALOG_HEADER

// GUI
#include <ui_pointListPickingDlg.h>

// Local
#include "ccPointPickingGenericInterface.h"

// qCC_db
#include <ccHObject.h>

class cc2DLabel;

//! Dialog/interactor to graphically pick a list of points
/** Options let the user export the list to an ASCII file, a new cloud, a polyline, etc.
 **/
class ccPointListPickingDlg : public ccPointPickingGenericInterface
    , public Ui::PointListPickingDlg
{
	Q_OBJECT

  public:
	//! Default constructor
	explicit ccPointListPickingDlg(ccPickingHub* pickingHub, QWidget* parent);

	//! Associates dialog with a cloud or a mesh
	void linkWithEntity(ccHObject* entity);

  protected:
	//! Applies changes and exit
	void applyAndExit();
	//! Cancels process and exit
	void cancelAndExit();
	//! Exports list to a new cloud
	void exportToNewCloud();
	//! Exports list to a polyline
	void exportToNewPolyline();
	//! Removes last inserted point from list
	void removeLastEntry();
	//! Exports list to an 'xyz' ASCII file
	inline void exportToASCII_xyz()
	{
		return exportToASCII(PLP_ASCII_EXPORT_XYZ);
	}
	//! Exports list to an 'ixyz' ASCII file
	inline void exportToASCII_ixyz()
	{
		return exportToASCII(PLP_ASCII_EXPORT_IXYZ);
	}
	//! Exports list to an 'gxyz' ASCII file
	inline void exportToASCII_gxyz()
	{
		return exportToASCII(PLP_ASCII_EXPORT_GXYZ);
	}
	//! Exports list to an 'lxyz' ASCII file
	inline void exportToASCII_lxyz()
	{
		return exportToASCII(PLP_ASCII_EXPORT_LXYZ);
	}

	//! Redraw window when marker size changes
	void markerSizeChanged(int);
	//! Redraw window when starting index changes
	void startIndexChanged(int);
	//! Updates point list widget
	void updateList();

  protected:
	// inherited from ccPointPickingGenericInterface
	void processPickedPoint(const PickedItem& picked) override;

	//! Gets current (visible) picked points from the associated cloud
	unsigned getPickedPoints(std::vector<cc2DLabel*>& pickedPoints);

	//! Export format
	/** See exportToASCII.
	 **/
	enum ExportFormat
	{
		PLP_ASCII_EXPORT_XYZ,
		PLP_ASCII_EXPORT_IXYZ,
		PLP_ASCII_EXPORT_GXYZ,
		PLP_ASCII_EXPORT_LXYZ
	};

	//! Exports list to an ASCII file
	void exportToASCII(ExportFormat format);

	//! Associated cloud or mesh
	ccHObject* m_associatedEntity;

	//! Last existing label unique ID on load
	unsigned m_lastPreviousID;
	//! Ordered labels container
	ccHObject* m_orderedLabelsContainer;
	//! Existing picked points that the user wants to delete (for proper "cancel" mechanism)
	ccHObject::Container m_toBeDeleted;
	//! New picked points that the user has selected (for proper "cancel" mechanism)
	ccHObject::Container m_toBeAdded;
};

#endif
